Gas-Liquid Separator and Compression System

ABSTRACT

A gas-liquid separator and a compression system are provided. An outer cylinder, an input pipe, an output pipe and a blocking part are arranged in the gas-liquid separator, a part of the input pipe is inserted into the outer cylinder, an inlet of the input pipe is located outside the outer cylinder, and an outlet of the input pipe is located inside the outer cylinder; a part of the output pipe is inserted into the outer cylinde, the inlet of the output pipe is located inside the outer cylinder, the outlet of the output pipe is located outside the outer cylinder, and an arrangement position of the inlet of the output pipe is higher than that of the outlet of the input pipe; and the blocking part is located between the inlet of the output pipe and the outlet of the input pipe

CROSS-REFERENCE TO RELATED APPLICATION(S)

The present disclosure is a national stage application of International Patent Application No. PCT/CN2020/107440, which is filed on Aug. 6, 2020. The present disclosure claims priority to Patent Application No. 201910969978.1, filed to the China National Intellectual Property Administration on Oct. 12, 2019 and entitled “Gas-Liquid Separator and Compression System”.

TECHNICAL FIELD

The present disclosure relates to a technical field of gas-liquid separators, and in particular to a gas-liquid separator and a compression system.

BACKGROUND

A compression system includes a gas-liquid separator and a compressor, which communicate with each other, gas-liquid mixed fluid is separated by the gas-liquid separator, and a separated gas enters the compressor for compression. The gas-liquid separation effect of a gas-liquid separator known to inventors is limited. When the degree of super-cooling of the system is relatively large, some large-particle liquid refrigerants or other liquid cannot be separated from a gaseous refrigerant, and some large-particle liquid flows into the compressor from the gas-liquid separator, thus causing a liquid impact to damage the compressor.

SUMMARY

Some embodiments of the present disclosure provide a gas-liquid separator and a compression system, so as to solve a problem of a poor gas-liquid separation effect of the gas-liquid separator in the art known to inventors.

In order to solve the above problems, according to one aspect of the present disclosure, some embodiments of the present disclosure provide a gas-liquid separator, including: an outer cylinder; an input pipe, wherein a part of the input pipe is inserted into the outer cylinder, an inlet of the input pipe is located outside the outer cylinder, and an outlet of the input pipe is located inside the outer cylinder; an output pipe, wherein a part of the output pipe is inserted into the outer cylinder, an inlet of the output pipe is located inside the outer cylinder, an outlet of the output pipe is located outside the outer cylinder, and an arrangement position of the inlet of the output pipe is higher than an arrangement position of the outlet of the input pipe; and a blocking part arranged in the outer cylinder, wherein the blocking part is located between the inlet of the output pipe and the outlet of the input pipe, so as to separate the inlet of the output pipe from the outlet of the input pipe.

In some embodiments, the blocking part is provided with an avoidance hole, and the avoidance hole communicates a region above the blocking part and a region below the blocking part.

In some embodiments, the blocking part is of a plate-shaped structure, and a periphery of the blocking part is connected to an inner wall of the outer cylinder; and in a radial direction of the outer cylinder, an area of the avoidance hole is less than an area of an entity part of the blocking part.

In some embodiments, a distance between the outlet of the input pipe and an edge of the avoidance hole is greater than an outer diameter of the input pipe.

In some embodiments, the inlet of the output pipe and the outlet of the output pipe are both located above the blocking part, the blocking part is provided with a limiting hole, and the output pipe passes through the limiting hole to limit the output pipe by the inner wall of the limiting hole.

In some embodiments, the input pipe includes a vertical segment and a horizontal segment which are connected to each other, wherein the inlet of the input pipe is located at an end part of the vertical segment, the outlet of the input pipe is located at an end part of the horizontal segment, and the outlet of the input pipe faces the inner wall of the outer cylinder.

In some embodiments, the output pipe is of a U-shaped structure, the gas-liquid separator further includes a filter assembly, and the filter assembly is arranged at a bottom of the output pipe.

In some embodiments, the gas-liquid separator further includes: a reinforcing plate arranged in the outer cylinder, and a bottom of the output pipe passes through the reinforcing plate, so as to fix the output pipe by the reinforcing plate.

In some embodiments, the outer cylinder includes an upper cover, a middle cylinder and a lower cover, which are connected in sequence, and both the input pipe and the output pipe pass through the upper cover.

According to another aspect of some embodiments of the present disclosure, a compression system is provided. The compression system includes a compressor and the gas-liquid separator provided above, and an outlet of the gas-liquid separator communicates with an inlet of the compressor.

By applying the technical solution of some embodiments of the present disclosure, the outer cylinder, the input pipe, the output pipe and the blocking part are arranged in the gas-liquid separator, a part of the input pipe is inserted into the outer cylinder, the inlet of the input pipe is located outside the outer cylinder, and the outlet of the input pipe is located inside the outer cylinder; a part of the output pipe is inserted into the outer cylinder, the inlet of the output pipe is located inside the outer cylinder, the outlet of the output pipe is located outside the outer cylinder, and the arrangement position of the inlet of the output pipe is higher than that of the outlet of the input pipe; and the blocking part is arranged in the outer cylinder, the blocking part is located between the inlet of the output pipe and the outlet of the input pipe, so as to separate the inlet of the output pipe from the outlet of the input pipe. In this way, a large-particle liquid state refrigerant or other liquid output from the outlet of the input pipe can be blocked by the blocking part, thereby preventing the large-particle liquid from splashing into the inlet of the output pipe. In this way, only a gas can be input to the output pipe. Therefore, the technical solution improves a gas-liquid separation effect of the gas-liquid separator, and then the damage to the compressor by a liquid impact is avoided.

BRIEF DESCRIPTION OF THE DRAWINGS

The drawings constituting a part of the present disclosure are used for providing a further understanding of the present disclosure, and exemplary embodiments of the present disclosure and descriptions thereof are used for explaining the present disclosure, but do not constitute improper limitations of the present disclosure. In the drawings:

FIG. 1 shows a schematic structural diagram of a gas-liquid separator provided by an embodiment of the present disclosure;

FIG. 2 shows a perspective view of the gas-liquid separator in FIG. 1 ;

FIG. 3 shows a top view of the gas-liquid separator in FIG. 1 ; and

FIG. 4 shows a schematic structural diagram of a blocking portion in FIG. 1 .

The above drawings include the following reference signs:

-   10. outer cylinder; -   20. input pipe; -   30. output pipe; -   40. blocking part; -   41. avoidance hole; -   42. limiting hole; -   50. filter assembly; -   60. reinforcing plate.

DETAILED DESCRIPTION OF THE EMBODIMENTS

A clear and complete description of technical solutions in the embodiments of the present disclosure will be given below, in combination with the drawings in the embodiments of the present disclosure. Apparently, the embodiments described below are merely a part, but not all, of the embodiments of the present disclosure. The following description of at least one exemplary embodiment is merely illustrative and is in no way used as any limitation to the present disclosure and its application or use. All of other embodiments, obtained by those of ordinary skill in the art based on the embodiments of the present disclosure without any creative effort, fall into the protection scope of the present disclosure.

As shown in the drawings, one embodiment of the present disclosure provides a gas-liquid separator, including: an outer cylinder 10; an input pipe 20, wherein a part of the input pipe 20 is penetrated into the outer cylinder 10, an inlet of the input pipe 20 is located outside the outer cylinder 10, and an outlet of the input pipe 20 is located inside the outer cylinder 10; an output pipe 30, wherein a part of the output pipe 30 is penetrated into the outer cylinder 10, an inlet of the output pipe 30 is located inside the outer cylinder 10, an outlet of the output pipe 30 is located outside the outer cylinder 10, and an arrangement position of the inlet of the output pipe 30 is higher than an arrangement position of the outlet of the input pipe 20; and a blocking part 40 arranged in the outer cylinder 10, wherein the blocking part 40 is located between the inlet of the output pipe 30 and the outlet of the input pipe 20, so as to separate the inlet of the output pipe 30 from the outlet of the input pipe 20.

By applying the technical solution of an embodiment of the present disclosure, the outer cylinder 10, the input pipe 20, the output pipe 30 and the blocking part 40 are arranged in the gas-liquid separator, wherein a part of the input pipe 20 is inserted into the outer cylinder 10, the inlet of the input pipe 20 is located outside the outer cylinder 10, and the outlet of the input pipe 20 is located inside the outer cylinder 10; a part of the output pipe 30 is inserted into the outer cylinder 10, the inlet of the output pipe 30 is located inside the outer cylinder 10, the outlet of the output pipe 30 is located outside the outer cylinder 10, and the arrangement position of the inlet of the output pipe 30 is higher than an arrangement position of the outlet of the input pipe 20; and the blocking part 40 is arranged in the outer cylinder 10, the blocking part 40 is located between the inlet of the output pipe 30 and the outlet of the input pipe 20, so as to separate the inlet of the output pipe 30 from the outlet of the input pipe 20. In this way, a large-particle liquid state refrigerant or other liquid output from the outlet of the input pipe 20 is blocked by the blocking part 40, thereby preventing the large-particle liquid from splashing into the inlet of the output pipe 30. In this way, only a gas is input to the output pipe 30. Therefore, the technical solution of some embodiments improves a gas-liquid separation effect of the gas-liquid separator, and then the damage to the compressor by a liquid impact is avoided.

In the present embodiment, the blocking part 40 is provided with an avoidance hole 41, and the avoidance hole 41 communicates a region above the blocking part 40 and a region below the blocking part 40. In this way, a gas separated from a gas-liquid mixed fluid can enter the region above the blocking part 40 from the region below the blocking part 40 by the avoidance hole 41, so as to enter the output pipe 30 for output.

In some embodiments, the blocking part 40 is of a plate-shaped structure, and a periphery of the blocking part 40 is connected to an inner wall of the outer cylinder 10; and in a radial direction of the outer cylinder 10, an area of the avoidance hole 41 is less than an area of an entity part of the blocking part 40. In this way, large-particle liquid is blocked by the entity part of the blocking part 40, so as to ensure a blocking effect.

As shown in FIG. 3 , in some embodiments, a distance H between the outlet of the input pipe 20 and an edge of the avoidance hole 41 is greater than an outer diameter L of the input pipe 20. By the above settings, it is possible to ensure the blocking effect of the blocking part 40 on the fluid output from the input pipe 20, thereby preventing the large-particle liquid from entering the output pipe 30.

In some embodiments of the present disclosure, the inlet of the output pipe 30 and the outlet of the output pipe 30 are both located above the blocking part 40, the blocking part 40 is provided with a limiting hole 42, and the output pipe 30 passes through the limiting hole 42 to limit the output pipe 30 by the inner wall of the limiting hole 42. In this way, the blocking part 40 can also realize an effect of fixing and limiting the output pipe 30.

In some embodiments, the input pipe 20 includes a vertical segment and a horizontal segment, which are connected to each other, wherein the inlet of the input pipe 20 is located at an end part of the vertical segment, the outlet of the input pipe 20 is located at an end part of the horizontal segment, and the outlet of the input pipe 20 faces the inner wall of the outer cylinder 10. In this way, the fluid output from the input pipe 20 is able to impact the inner wall of the outer cylinder 10 to disperse and atomize or vaporize the large-particle liquid, so as to improve the gas-liquid separation effect.

In some embodiments, the output pipe 30 is of a U-shaped structure, the gas-liquid separator further includes a filter assembly 50, and the filter assembly 50 is arranged at a bottom of the output pipe 30. In this way, the fluid is filtered by the filter assembly 50 to prevent impurities in the system from blocking an oil return hole.

In some embodiments, the gas-liquid separator further includes: a reinforcing plate 60 arranged in the outer cylinder 10, and the bottom of the output pipe 30 passes through the reinforcing plate 60, so as to fix the output pipe 30 by the reinforcing plate 60. In this way, the output pipe 30 is fixed by the reinforcing plate 60, and the reliability of the gas-liquid separator is thus improved.

In some embodiments, the outer cylinder 10 includes an upper cover, a middle cylinder and a lower cover, which are connected in sequence, and both the input pipe 20 and the output pipe 30 pass through the upper cover. This facilitates the assembly of the components and improves the structural strength.

In some embodiments, the gas-liquid separator further includes a base, and the base is arranged at a bottom of the outer cylinder 10. By disposing the base, it is convenient to fix the gas-liquid separator and connect the gas-liquid separator and other devices. In some embodiments, a plurality of bases can be provided to improve the reliability.

Another embodiment of the present disclosure provides a compression system. The compression system includes a compressor and the gas-liquid separator provided above, and an outlet of the gas-liquid separator communicates with an inlet of the compressor. An outer cylinder 10, an input pipe 20, an output pipe 30 and a blocking part 40 are arranged in the gas-liquid separator, wherein a part of the input pipe 20 is inserted into the outer cylinder 10, an inlet of the input pipe 20 is located outside the outer cylinder 10, and an outlet of the input pipe 20 is located inside the outer cylinder 10; a part of the output pipe 30 is inserted into the outer cylinder 10, the inlet of the output pipe 30 is located inside the outer cylinder 10, the outlet of the output pipe 30 is located outside the outer cylinder 10, and an arrangement position of the inlet of the output pipe 30 is higher than that of the outlet of the input pipe 20; and the blocking part 40 is arranged in the outer cylinder 10, the blocking part 40 is located between the inlet of the output pipe 30 and the outlet of the input pipe 20, so as to separate the inlet of the output pipe 30 from the outlet of the input pipe 20. In this way, a large-particle liquid state refrigerant or other liquid output from the outlet of the input pipe 20 can be blocked by the blocking part 40, thereby preventing the large-particle liquid from splashing into the inlet of the output pipe 30. In this way, only a gas can be input to the output pipe 30. Therefore, the technical solution of some embodiments improves a gas-liquid separation effect of the gas-liquid separator, and then the damage to the compressor by a liquid impact is avoided.

The above descriptions are only some embodiments of the present disclosure, and are not intended to limit the present disclosure. For those skilled in the art, the present disclosure can have various modifications and changes. Any modifications, equivalent replacements, improvements and the like, made within the spirit and principles of the present disclosure, shall all fall within the protection scope of the present disclosure. 

What is claimed is:
 1. A gas-liquid separator, comprising: an outer cylinder; an input pipe, wherein a part of the input pipe is inserted into the outer cylinder, an inlet of the input pipe is located outside the outer cylinder, and an outlet of the input pipe is located inside the outer cylinder; an output pipe, wherein a part of the output pipe is inserted into the outer cylinder, an inlet of the output pipe is located inside the outer cylinder, an outlet of the output pipe is located outside the outer cylinder, and an arrangement position of the inlet of the output pipe is higher than an arrangement position of the outlet of the input pipe; and a blocking part arranged in the outer cylinder, wherein the blocking part is located between the inlet of the output pipe and the outlet of the input pipe, so as to separate the inlet of the output pipe from the outlet of the input pipe.
 2. The gas-liquid separator as claimed in claim 1, wherein the blocking part is provided with an avoidance hole, and the avoidance hole communicates a region above the blocking part and a region below the blocking part.
 3. The gas-liquid separator as claimed in claim 2, wherein the blocking part is of a plate-shaped structure, and a periphery of the blocking part is connected to an inner wall of the outer cylinder; and in a radial direction of the outer cylinder, an area of the avoidance hole is less than an area of an entity part of the blocking part.
 4. The gas-liquid separator as claimed in claim 2, wherein a distance between the outlet of the input pipe and an edge of the avoidance hole is greater than an outer diameter of the input pipe.
 5. The gas-liquid separator as claimed in claim 1, wherein the inlet of the output pipe and the outlet of the output pipe are both located above the blocking part, the blocking part is provided with a limiting hole, and the output pipe passes through the limiting hole to limit the output pipe by the inner wall of the limiting hole.
 6. The gas-liquid separator as claimed in claim 1, wherein the input pipe comprises a vertical segment and a horizontal segment, which are connected to each other, wherein the inlet of the input pipe is located at an end part of the vertical segment, the outlet of the input pipe is located at an end part of the horizontal segment, and the outlet of the input pipe faces the inner wall of the outer cylinder.
 7. The gas-liquid separator as claimed in claim 1, wherein the output pipe is of a U-shaped structure, the gas-liquid separator further comprises: a filter assembly, and the filter assembly is arranged at a bottom of the output pipe.
 8. The gas-liquid separator as claimed in claim 1, wherein the gas-liquid separator further comprises: a reinforcing plate arranged in the outer cylinder, and a bottom of the output pipe passes through the reinforcing plate, so as to fix the output pipe by the reinforcing plate.
 9. The gas-liquid separator as claimed in claim 1, wherein the outer cylinder comprises an upper cover, a middle cylinder and a lower cover, which are connected in sequence, and both the input pipe and the output pipe pass through the upper cover.
 10. A compression system, wherein the compression system comprises a compressor and the gas-liquid separator as claimed in claim 1, and an outlet of the gas-liquid separator communicates with an inlet of the compressor.
 11. The compression system as claimed in claim 10, wherein the blocking part is provided with an avoidance hole, and the avoidance hole communicates a region above the blocking part and a region below the blocking part.
 12. The compression system as claimed in claim 11, wherein the blocking part is of a plate-shaped structure, and a periphery of the blocking part is connected to an inner wall of the outer cylinder; and in a radial direction of the outer cylinder, an area of the avoidance hole is less than an area of an entity part of the blocking part.
 13. The compression system as claimed in claim 11, wherein a distance between the outlet of the input pipe and an edge of the avoidance hole is greater than an outer diameter of the input pipe.
 14. The compression system as claimed in claim 10, wherein the inlet of the output pipe and the outlet of the output pipe are both located above the blocking part, the blocking part is provided with a limiting hole, and the output pipe passes through the limiting hole to limit the output pipe by the inner wall of the limiting hole.
 15. The compression system as claimed in claim 10, wherein the input pipe comprises a vertical segment and a horizontal segment, which are connected to each other, wherein the inlet of the input pipe is located at an end part of the vertical segment, the outlet of the input pipe is located at an end part of the horizontal segment, and the outlet of the input pipe faces the inner wall of the outer cylinder.
 16. The compression system as claimed in claim 10, wherein the output pipe is of a U-shaped structure, the gas-liquid separator further comprises: a filter assembly, and the filter assembly is arranged at a bottom of the output pipe.
 17. The compression system as claimed in claim 10, wherein the gas-liquid separator further comprises: a reinforcing plate arranged in the outer cylinder, and a bottom of the output pipe passes through the reinforcing plate, so as to fix the output pipe by the reinforcing plate.
 18. The compression system as claimed in claim 10, wherein the outer cylinder comprises an upper cover, a middle cylinder and a lower cover, which are connected in sequence, and both the input pipe and the output pipe pass through the upper cover. 